const double energies_vibration[9] = { 0.01, 0.024, 0.061, 0.092, 0.204, 0.417, 0.460, 0.500, 0.835 };
const double energies_excitation[5] = { 8.22, 10.00, 11.24, 12.61, 13.77 };
const double energies_ionisation[5] = { 10.79, 13.39, 16.05, 32.30, 539.0 };